How many different arrangements of 5 letters can be formed if the first letter must be W or K (repeats of letters are allowed) ?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Find the distance between (0,5) & (-4,2)

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.